有關A.12B.14C.21D.41的精選大全

若兩個三角形的相似比為1:2，則它們的面積比為（）A．1:2B．1:4C．2:1D．4:1

2020-05-17 問題詳情：若兩個三角形的相似比為1:2，則它們的面積比為（）A．1:2B．1:4C．2:1D．4:1【回答】B知識點：相似三角形題型：選擇題...

Onceuponatime,therewasapoorman.His 41 wasalsoverypoor—a...

2020-03-23 問題詳情：Onceuponatime,therewasapoorman.His 41 wasalsoverypoor—asmallandemptyhouse,whichwas 42 withspiderwebs(蜘蛛網).Peopletriedto 43 comingintohishouseastheydidn’twanttocometosucha 44 place...

ItwasacoolOctoberevening.Excitementandfamilymembers 41...

2021-04-01 問題詳情：ItwasacoolOctoberevening.Excitementandfamilymembers 41 thehall.Iwasonlya7-year-oldgirl,butIwasthecenterof 42 .Finally,afterweeksofpreparation,Iwould 43 allmyhardworkinadanceper...

14C是一種放**同位素，在一定條件下，14N可轉變為14C，下列説法正確的是( )A．14C和14N互為...

2020-09-09 問題詳情：14C是一種放**同位素，在一定條件下，14N可轉變為14C，下列説法正確的是( )A．14C和14N互為同位素 B．14N和C60是同素異形體C．C核素中的中子數為8 D．14CO2的摩爾質...

41.Thustheprinceandtheprincesslived

2020-04-05 問題詳情：theprinceandtheprincesslived______(和平地)together.42.Movingtoanewhouseisavery_________(緊張的）experience.43.Hec_____(抱怨)thatnothingcameoutthewayhehadexpected.44.Suddenlyhereceivedan_____(緊...

41.Ithinkheisnot

2020-03-06 問題詳情：41.Ithinkheisnot______(self).Hehasbeenconcernedwith peoplearoundhim.42.Millionsoffansadmirehisathleticability,_________(motivate)andconfidence.43.___________wewillgocampingtomorrowornotdepend...

下列敍述錯誤的是　　　　　　　　　　　　　　（　　）A．13C和14C屬於同一種元素，它們互為同位素B．14C...

2021-05-19 問題詳情：下列敍述錯誤的是（）A．13C和14C屬於同一種元素，它們互為同位素B．14C和14N的質量數相等，它們的中子數不等C．6Li和7Li的電子數相等，中子數也相等D．1H和2H是不同的核素，它們的質子數相等【回答】C知識點：物質結構元素週期律...

Britishpeopleareworkingtoanolderage.41.

2021-05-29 問題詳情：Britishpeopleareworkingtoanolderage.41._____numberofworking70-74-year-oldshasdoubledinrecentyears.Around10%ofpeoplein42.______(they)early70snowwork.Thisisthe43.______(high)figureonrecord.Animp...

41.Stayingupforplayingcomputergamesis

2020-04-15 問題詳情：41.Stayingupforplayingcomputergamesis_________(harm)tochildren’health. 42.TheUSisChina’sbiggestexportmarket,___________(account)formoreth...

用WASP-12b造句子，“WASP-12b”造句

2018-10-11 Theexoplanet,calledWASP-12b,isagasgiant,likeJupiter.WASP-12bisagaseousplanet,about1.5timesthemassofJupiter,andalmosttwicethesize.被叫作WASP-12b的行星是目前發現的最熱的行星（約4，000華氏度，或約2，200攝氏度），相...

I’vedreamedofbecomingawritersinceIwasateenager.But 41 ...

2021-11-10 問題詳情：I’vedreamedofbecomingawritersinceIwasateenager.But 41 isn’teasytogetabookofminepublished. 42 I’vetriedhard,noneofmybookshavebeenpublished.Thisisreally 43 (upset).Thismorni...

AtanairportIoverheardafatheranddaughterduringtheir 41 ...

2020-07-13 問題詳情：AtanairportIoverheardafatheranddaughterduringtheir 41 momentstogether.Her 42 wasreadyforboarding.Theyhuggedandhesaid,“Iloveyou.Iwishyou 43 ”Sheinturnsaid，“Daddy,Iwishyouenoug...

MybrotherandIslippedoutofthebed.Wegrabbedour 41 ...

2020-04-28 問題詳情： MybrotherandIslippedoutofthebed.Wegrabbedour 41 andputonourshoes.Withoutheatersinouroldhome,wearingcoatsinsidewasas 42 aswearingshirtsinsummer. Butthismorningwas...

下列計算正確的是( )A．(－0.875)×＝B．－×(－6)＝－3C．－7×(－3)＝21D．(－...

2019-07-07 問題詳情：下列計算正確的是( )A．(－0.875)×＝B．－×(－6)＝－3C．－7×(－3)＝21D．(－4)×0＝－4【回答】C知識點：有理數的乘除法題型：選擇題...

Amanandhisgirlfriendweremarried.Itwasalarge 41 . A...

2021-04-01 問題詳情： Amanandhisgirlfriendweremarried.Itwasalarge 41 . Alloftheirfriendsand42cametoseethelovelyceremonyandto43inthefestivitiesandcelebrations.Allhad awonderfultime.The bridewas ...

執行下面的程序框圖，則輸出的A. 17B. 19C. 21D. 23

2019-05-28 問題詳情：執行下面的程序框圖，則輸出的A. 17B. 19C. 21D. 23【回答】C知識點：高考試題題型：選擇題...

A 41 thinghappened 42 melastSunday.Itwassuchabeautif...

2020-02-13 問題詳情：A 41 thinghappened 42 melastSunday.Itwassuchabeautifulday 43 Idrovetogoforalookinthecountry.Onthewaybackhome,my 44 stopped.Itwasoutofgasona 45 roadfarfromatown!Idecidedto...

31×41－11×41×2－9.5×11.

2019-11-10 問題詳情：31×41－11×41×2－9.5×11.【回答】31×41－11×41×2－9.5×11＝31×41－11×41－11×41－9.5×11＝41×(31－11)－11×(41＋9.5)＝(41＋)×20－(11＋)×51＝820＋10－561－17＝252.知識點：有理數的乘除法題型：計算題...

ChristopherReeve, 41

2020-12-23 問題詳情：ChristopherReeve, 41__wasborninSeptember,1952,wasinhisfirstschoolplay 42__hewaseightandhestartedtoactinTVshowsandfilmswhilehewasstillincollege.Hemademany____43___(success)filmsandTVshowsbuth...

計算（﹣3）+（﹣9）的結果是（　　）　A．﹣12B．﹣6C．+6D．12

2021-12-29 問題詳情：計算（﹣3）+（﹣9）的結果是（）A．﹣12B．﹣6C．+6D．12【回答】A知識點：各地中考題型：選擇題...

　A 41 thinghappened 42melastSunday．Itwassuchabeautifuld...

2020-08-03 問題詳情：A 41 thinghappened 42melastSunday．Itwassuchabeautifulday 43 Idrovetogoforalookinthecountry.Onthewaybackhome,my 44 stopped．Itwasoutofgasona 45roadfarfromatown!IdecidedtowalkuntilIfounds...

41.MoststudentsinChinacan’tspeakEnglish

2021-11-08 問題詳情：studentsinChinacan’tspeakEnglish_____________(fluent).42._____________(determine)tomakehisdreamcometrue,hewenttoBeijingforfurtherstudy.problemisfarfrom___________(settle),sowewillhavetodiscus...

用14c造句子，“14c”造句

2017-05-23 用14c示蹤技術研究了金釵石斛光合產物運轉與分配的變化。但是，對14c數據的系統校正，迄未得到應有的重視，致使在應用14c數據解釋地層和地質現象的年代時，存在着一定程度的混亂。...

Fastfoodisbecomingmoreand 41

2020-07-17 問題詳情：Fastfoodisbecomingmoreand 41 _____ popularinChina,especiallyamongchildrenandteenagers.Thereareseveralexplanationsfor itspopularity.First,itisveryconvenientand42 a...

已知*A＝{x|x2＋ax＋12b＝0}和B＝{x|x2－ax＋b＝0}，滿足(∁RA)∩B＝{2}，A∩(...

2020-01-15 問題詳情：已知*A＝{x|x2＋ax＋12b＝0}和B＝{x|x2－ax＋b＝0}，滿足(∁RA)∩B＝{2}，A∩(∁RB)＝{4}，求實數a，b的值．【回答】解：由條件(∁RA)∩B＝{2}和A∩(∁RB)＝{4}，知2∈B，但2∉A；4∈A，但4∉B.將x＝2和x＝4分別代入B，A兩*中的方程得即解得a＝，b＝－即為所求．知識點：*與...

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